Cooling for LED



Invention Summary

Since CNT (carbon nanotube) has outstanding thermal conductivity over all wavelength regimes, it is a good material for LED (light emitting diode) cooling. A CNT deposition coating by functionalizing CNTs increase coating compatibility.

The invention is a functionalized carbon nanotube (FCNT)-deposited surface. Nanofluidic FCNTs aggregate and lead to a porous surface, contributing to radiative heat dissipation.


Market Opportunity

The invention is applied to heat dissipating plates for a light emitting diode (LED), and a head lamp for an automobile. High density heat shortens the life of LEDs substantially. Black anodizing has been commonly used for aluminum-based cooling fins. However, black anodizing consists of several consecutive surface treatment processes: electropolishing, anodizing, dyeing, and sealing. Although black anodized cooling fins contribute to radiative heat dissipation, there have been demands for enhanced cooling and the development of a more cost-effective method.


Features & Benefits

A combined effect of augmented conduction and radiation via FCNT-deposited porous surface can effectively reduce heat generated from LED compared to existing black anodized surface.


Functionalized-CNT-deposited coating leads to almost 25% enhanced cooling performance under natural convection conditions compared to non-surface-treated fin.


Intellectual Property         Patent filed



Patent Information:
For Information, Contact:
John Minnick
Business Development Officer
University of Nevada, Las Vegas
Kwang Kim
Bong Zhang
Mechanical Engineering
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